Publication : t01/067
Gravitational oscillations of a liquid column in a pipe
Lorenceau E. (Laboratoire de Physique de la Matière Condensée (LPMC), Collège de France, URA 792 du CNRS F-75231 Paris Cedex 05, FRANCE)Quéré D. (Laboratoire de Physique de la Matière Condensée (LPMC), Collège de France, URA 792 du CNRS F-75231 Paris Cedex 05, FRANCE)
Ollitrault J.-Y. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Clanet C. (Institut de recherche sur les phénomènes hors équilibre (IRPHE), UMR 6594 du CNRS 49 rue F. Joliot-Curie, F-13384 Marseille, FRANCE)
Abstract:Année de publication : 2002
We report gravity oscillations of a liquid column partially immersed in a bath of liquid. We stress in particular some peculiarities of this system, namely (i) the fact that the mass of this oscillator constantly changes with time; (ii) the singular character of the beginning of the rise, for which the mass of the oscillator is zero; (iii) the sources of dissipation in this system, which is found to be dominated at low viscosity by the entrance (or exit) effects, leading to a long-range damping of the oscillations. We conclude with some qualitative description of a second-order phenomenon, namely the eruption of a jet at the beginning of the rise.
Revue : Phys. Fluids 14 1985-1992 (2002)
Preprint : arXiv:physics/0106096
PACS : 68.10.Cr,68.45.Gd,83.50.Lh
Langue : Anglais
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publi.pdf
